UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

IEC 60050-445

International Electrotechnical Vocabulary – Part 445: Time relays

active, Most Current
Buy Now
Organization: IEC
Publication Date: 1 October 2010
Status: active
Page Count: 74
ICS Code (Electrical engineering (Vocabularies)): 01.040.29
ICS Code (Relays): 29.120.70
scope:

This part of IEC 60050 defines terms related to specified-time relays.

In the past, IEC 60050-446 (Part 446 of the IEV) listed the terminology for all types of electrical relays. In order to improve the precision of terms and definitions as well as the general visibility of relay terminology, it had been decided to split that part of the IEV into three separate parts optimised for the specific relay types covered.

Therefore, this part of IEC 60050 gives terms and definitions for (specified) time relays superseding the terminology of IEC 60050-446 for such relays.

The terminology for elementary relays (non-specified time all-or-nothing relays) is contained in IEC 60050-444. A new part for measuring relays (IEC 60050-447) is also under preparation. When all these three parts are published, IEC 60050-446 shall be withdrawn.

This standard is intended to define the most common time relay functions, and not all possible combinations.

Document History

IEC 60050-445
October 1, 2010
International Electrotechnical Vocabulary – Part 445: Time relays
This part of IEC 60050 defines terms related to specified-time relays. In the past, IEC 60050-446 (Part 446 of the IEV) listed the terminology for all types of electrical relays. In order to improve...
January 1, 2002
International Electrotechnical Vocabulary Part 445: Specified Time All-Or-Nothing Relays
In the past, IEC 60050-446 (Part 446 of the IEV) listed the terminology for all types of electrical relays. In order to improve the precision of terms and definitions as well as the general...

References

Advertisement